Title :
Nonlinear detection of spectrally coded ultrashort pulse by two-photon absorption GaAs waveguide photodetectors
Author :
Zheng, Zhengguang ; Sardesai, Harshad ; Chang, C.C. ; Shen, Shikui ; Weiner, Andrew M. ; Marsh, John H. ; Karkanehchi, M.M.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
Summary form only given. Our results confirm the strong intensity and pulsewidth dependence of the photocurrent from two photon absorption (TPA) waveguide photodetectors for ultrashort pulses with strong phase and amplitude modulations. We can expect the application of similar devices as the ultrafast optical thresholders for CDMA and other ultrafast network applications.
Keywords :
III-V semiconductors; amplitude modulation; code division multiple access; gallium arsenide; high-speed optical techniques; optical fibre networks; optical modulation; optical signal detection; optical waveguides; photodetectors; pulse modulation; CDMA; GaAs waveguide photodetectors; amplitude modulations; nonlinear detection; photocurrent; pulsewidth dependence; spectrally coded ultrashort pulse; strong intensity; strong phase; two photon absorption waveguide photodetectors; two-photon absorption; ultrafast network applications; ultrafast optical thresholders; ultrashort pulses; Absorption; Amplitude modulation; Nonlinear optical devices; Nonlinear optics; Optical pulses; Optical waveguides; Photoconductivity; Photodetectors; Pulse modulation; Space vector pulse width modulation;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.675916
